US4363579A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Damage prevention void filler for separating loads during transit
Assignee: Illinois Tool Works Inc
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Filing: 1980-02-25
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Granted: 1982-12-14
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Expires: 2000-02-25
Abstract
Abstract A method and product provide a highly portable, corrugated void filler for preventing damage to unitized loads has a body or core formed into an accordian shape to provide a number of aligned slots adapted to receive portions of associated cap sheets which are fitted in place to produce a rigid, lightweight product. Each cap sheet has a top flange with reversely bent layers of cardboard which provide a locking effect urging the layers apart in a spring-like fashion to retain the cap sheets securely in position after each is inserted into slots of the body member. The top flange of each cap sheet has outwardly extending portions adapted for mounting the void filler in position by suspending between loads or by fastening only when necessary to a vehicle sidewall.
Inventors
- 👤 Eugene A. Rogers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:02
CPC Classifications
B; B60; B60P; B60P7/00; B60P7/06; B60P7/135; B60P7/14; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32254; Y10T403/32262; Y10T403/32319; Y10T403/32393
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
183 words
A void filler type damage protection device for preventing damage to cargo during transit, the improvement comprising: a body; said body having score lines and adapted to be folded from a flat, rectangular shape into an accordion shape with sides adapted to extend vertically when the void filler is in position adjacent cargo; said body also having diagonal sections extending from the sides and terminating at an apex; said body having inwardly extending slots; cap sheet means; said cap sheet means having top flange means and a downwardly extending web; said top flange means comprising a first, shortened, layer extending from and connected to the web, and, formed to provide a resilient attachment member for connecting the cap sheet means with the body; said flange having at least a portion inserted into the associated slots of the body and forming a spring-type connection between the cap sheet means and body to securely join each together; and, said top flange means having means connecting said diagonal sections and sides to form rigidifying triangle means for strengthening the void filler to resist crushing and twisting.
Claim 2
Dependent Claim
183 words
A void filler type damage protection device for preventing damage to cargo during transit, the improvement comprising: a body; said body having score lines and adapted to be folded from a flat, rectangular shape into an accordion shape with sides adapted to extend vertically when the void filler is in position adjacent cargo; said body also having diagonal sections extending from the sides and terminating at an apex; said body having inwardly extending slots; cap sheet means; said cap sheet means having top flange means and a downwardly extending web; said top flange means comprising a first, shortened, layer extending from and connected to the web, and, formed to provide a resilient attachment member for connecting the cap sheet means with the body; said flange having at least a portion inserted into the associated slots of the body and forming a spring-type connection between the cap sheet means and body to securely join each together; and, said top flange means having means connecting said diagonal sections and sides to form rigidifying triangle means for strengthening the void filler to resist crushing and twisting.
Claim 3
Dependent Claim
60 words
The damage protection device of claim 1 wherein said cap sheet means includes: a lower leg extending inwardly from the web in the same direction as the top flange means and providing additional pairs of structural reinforcing triangles providing rigidity to the lower portion of the web and providing additional attachment means connecting the cap sheet means with the body.
Claim 4
Dependent Claim
47 words
The damage protection device of claim 2 wherein: said top flange means having a double layer section adapted for insertion into associated slots; said double layer section comprising a first, shortened layer and a top layer with a portion adapted to extend over the first, shortened layer.
Claim 5
Dependent Claim
28 words
The damage protection device of claim 3, wherein said top flange means includes: an extension adapted to extend outwardly of the cap sheet for supporting the void filler.
Claim 6
Dependent Claim
99 words
The damage protection device of claim 1, and: said body having a M-shaped configuration when assembled to the cap sheet means; said body having four aligned upper and four aligned lower slots; said top flange having means inserted into and held by spring action within the associated upper slots; said cap sheet means having an inwardly extending lower leg; said lower leg means of the cap sheet means having connecting means inserted into and held within the lower slots; said body and cap sheet means providing three smaller structural, reinforcing triangles and also forming three larger structural, reinforcing triangles.
Claim 7
Dependent Claim
28 words
The damage protection device of claim 1, and: a single layer extending outwardly from the web means to form attaching means for mounting the void filler in position.
Claim 8
Dependent Claim
79 words
The damage protection device of claim 1, wherein: said cap sheet means includes an inwardly extending leg with means spaced from and adapted to extend generally parallel with the top flange; portions of said leg adapted for insertion into associated slots of the sides of the body; said leg also having flap means adapted to abut the diagonal sections and form a continuation of the web means whereby the slots in the diagonal sections are located below the leg.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-12-13 | 1986-06-14 | 1986-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-12-13 | 1990-06-14 | 1990-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-12-13 | 1994-06-14 | 1994-12-14 | $7700.00 | Window Closed / Lapsed |